Cylinder comb

ABSTRACT

A cylinder comb wherein a plurality of needle plates of the same type each having one or more needle heads on the head part are piled up in grooves for setting a needle row provided on a radiating line from the central axis of a cylinder on the exterior circumferential surface of said cylinder, and adjacent needle plates are reciprocally connected by joining belt-typed plates with the front or the back surface of the base part of the above-mentioned piled-up needle plates.

United States Patent Nakagawa et a]. [4 1 May 30, 11972 [54] CYLINDER COMB [56] References Cited UNITED STATES PATENTS I N [72] Ken m Nakagaw, 1,482,242 1/1924 Mlchaud ..132/1s2 both of 442-3, Oazaoka Ano-mura,

1,305,226 5/1919 Kunkler.....

Wasuke Tsuda, 490-6. Oazaoka Anomura all ofA eun Mic-ken .Ia an 2949920 8/1960 Humphrey g g P 0150,319 7/1948 Sawyer Filed: Oct. 28, 1969 Appl. No.2 871,840

Foreign Application Priority Data Primary Examiner-Louis G. Mancene Assistant Examiner-Gregory E. McNeill Attorney-Whittemore, Hulbert & Belknap [57] ABSTRACT A cylinder comb wherein a plurality of needle plates of the same type each having one or more needle heads on the head part are piled up in grooves for setting a needle row provided on a radiating line from the central axis of a cylinder on the exterior circumferential surface of said cylinder, and adjacent needle plates are reciprocally connected by joining belt-typed plates with the front or the back surface of the base part of the above-mentioned piled-up needle plates.

8 Claims, 15) Drawing Figures Patented May 30, 1972 eets-Sheet 1 INVENTOR NAKAGAW NA KDAAGA W PRIOR ART nswm JUNICHIRO WASUKE T60 PRIOR ART BY ATTORNEY Fig. 2

Patented May 30, 1972 3 Sheets$heet 2 INVENTOR KEIJIRO HAKAGAWA JUNICHIRO NAKAGAWA WASUKE mum BY wi -Mu W ATTORNEY Patented May 30, 1972 3 Sheets-Shut 5 INVENTOR KEMHRO NAKAGAWA JU N \cmko NAKAGAWA WASUKE. 'nsuDA J ATTORNEY aZz4$W CYLINDER COMB BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a cylinder comb and refers more specifically to a cylinder comb wherein combing effects are heightened; the repair and exchange of unusable needles is simplified, and, in addition wherein, a, needle-row ribbon is connected by piling up a plurality of needle plates in grooves provided on the exterior circumferential surface of a cylinder so that enough tension may be had.

2. Description of the Prior Art As for conventional cylinder combs for combers, there have been various types as follows: i

l) a comb wherein a needle bar is screwed to a slant groove; 2) wherein needles are set direct to the slant groove of a cylinder comb body and the gap between the needles and the groove is adhered with a fillers; 3) wherein comb-shaped needles are inserted into the slant groove of the cylinder comb body and metal needle cloth is adhered to the surface of the cylinder comb; and various other types. But each of these conventional types has its merits and demerits, and satisfactory results have not always been produced by these types. For example, the above-mentioned third type has as a merit the fact that dust doesn't adhere thereto and also doesnt accumulate therein, but on the other hand said third type has the following inconvenient points: The most suitable angle cant be retained because the needle-sticking angle becomes only the angle created on the cylinder comb body; the intensity is insufficient because the thickness between grooves is uneven.

. In a cylinder comb wherein in one groove dug in the cylinder there is set the ribbon of a row of needles each having one needle head; the total number of needle heads in the operating circular arc has been the same as that of the grooves dug in the cylinder comb and generally the rows 18-19, namely, needle heads 18-19 have hithertofore been used. But, in this type, it has been quite impossible to change the number of needle heads in an operating circular arc and also to make said number the most suitable one in accordance with fibres.

Furthermore, as shown in FIG. 1, in conventional ribbons of needle rows, between the setting part 2 of the needle 1 and the operating part 3 of the needle 1 there have been fixed a plurality of needles 1 forming the step part by making the width of the setting part 2 of the needle 1 bigger than that of the operating part 3 of the needle 1, so it has been somewhat difficult to manufacture a needle 1 having its step part 4. Besides,

in the manufactured ribbons of needle rows, a gap between the needle operating parts 3 is definitely 2a which is twice as wide as the step part 4 provided between the operating part 3 of the needle aridthe needle setting part 2. Furthermore, as it has been impossible to adjust the width of the gap between the needle operating parts in accordance with the kinds of slivers there has been thedemerit of being unable to comb slivers by means of ribbons of needle rows in the best condition.

SUMMARY OF INVENTION This invention aims at canceling the inconveniences of conventional cylinder combs, at heightening combing effects, at the simplification of repair and exchange of needles which have become unusable, and, in addition, at furnishing a cylinder comb having enough intensity. According to the construction of this invention there are piled up in layers a plurali- 'ty of plate-shaped needle separate-bodies each having one or more needles provided at the base pan and the head part of said units; in the above-mentioned base part, ribbons of needle rows which are mutually connected by a belt-shaped body provided on the side of the base part said belt-shaped body may be adhered to the base part or may be fitted to the groove of the base part are situated and, moreover, are fitted into a small groove provided on a needle-row setting groove parallel to the rotating axis and are also fitted in a small groove provided on the side wall of said groove.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is the front view of the embodiment 1 of the ribbon of a needle row according to the conventional technique.

FIG. 2 is the side view of another embodiment of the ribbon of a needle row according to the conventional technique.

FIG. 3 is the front view of the ribbon of a needle row shown in FIG. 2.

FIGS. 4-8 show an embodiment of a cylinder comb according to this invention.

FIG. 4 is the longitudinal side view thereof;

FIG. 5 is the enlarged longitudinal side view of the main part thereof;

FIG. 6 is the cross-sectional view of a cylinder comb showing the condition in which a needle row has been removed;

FIG. 7 is the front view of one part of a needle row;

FIG. 8 is the cross-sectional view taken along line VIII- VIII of FIG. 7;

FIGS. 9-1 1 show a second embodiment of this invention;

FIG. 9 is the side view;

FIG. 10 is the front view of the ribbon of a needle row;

FIG. 11 is the cross-sectional view taken along line XIXI of FIG. 10. I

FIGS. 1215 respectively show the ribbon of a needle row of other embodiments;

FIG. 12 is the front view thereof;

FIG. 13 is the side view thereof;

FIG. 14 is the side view of a needle;

FIG. 15 is the side view of a metal plate.

FIGS. 16-19 show the ribbon of a needle row of other embodiments;

FIG. 16, 17 and 18 show the side view showing the manufacturing process of the ribbon of a needle row according to this invention;

FIG. 19 is the front view of FIG. 18.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 4-8, 11 is a cylinder comb body; 12 is the center of the circular arc of the cylinder comb 11, and in the operating circular are 13 of said cylinder comb 1 1 there is formed a groove 14 for setting the needle row parallel to an imaginary line 15 radiating at equal intervals from the center 12.

As shown in FIG. 6 a groove 16 of narrow width is formed parallel to the axis of a cylinder comb body and forms an angle a(a rr/2), with the imaginary radiating line 15 on the side wall surface of the above-mentioned groove 14 near the exterior circumferential surface of a cylinder comb body.

As shown in FIGS. 5, 7 and 8, 17 is a saw-toothed metal plate having a -shaped needle-point 19 forming a circulararc-shaped bored part 18 in the operating part, and forms bored parts 21 and 22 respectively on both the front and the back face of a hurried part 20 by making the width 1 of the longitudinal direction of the burried part 20 of said metal plate 17 narrower than the width L of the base part 19'. 23 is a triangular groove dug in the center of the front bored part 21. In addi tion, as mentioned above, the length of the before-mentioned burried part 20 forming the bored parts 21, 22 and the triangular groove 23 is smaller than that of groove 14 formed in the cylinder comb body 11. Also, the thickness of the needle point 19 is made smaller than that of the burried part 20, and a step part 25 as shown in FIG. 4 is formed in the base part of the needle point 19.

As shown in FIG. 8 26 is a plastic belt in which a triangular projection 27 adapted to catch on the small groove 16 of the cylinder comb body 11 is formed in the direction opposite to a triangular 28 adapted to fit within the triangular groove 23. 29 is a plain plastic belt of the same thickness and length as the above-mentioned belt. The plastic belt 26 is adhered to the front bored part 21 of many sawtoothed metal plates 17 piled up in the longitudinal direction. In addition, said plastic belt 29 is adhered to the bored part 22 on the back surface so that a needle row 30 may be formed.

Several different needle rows 30, each row having a different number of needle plates 17 constructed as mentioned above, are available for a cylinder comb for a comber according to this invention. The cylinder comb is formed by fitting each needle row 30 in its fixed groove in such a way that the needle row 30 having the least number of metal plates may be fitted in the groove 14 on the front row and then each succeeding row thereafter has a correspondingly greater number of plates.

A second embodiment of the invention is represented in FIGS. 9ll. The groove 33 of the 19th row is dug in the direction radiation from the axis 35 within the length a of the operating circular arc, and a small groove 34 is dug by the side of said groove 33. As shown in FIG. 11, a single needle plate body which is adapted to be fitted into the above-mentioned groove 33 and small groove 34 comprises a metal 42 having a step 41 is formed so that the tip of said plate 42 is thin and its base part is thick; the front needle head 37 and the back needle head 38 are arranged in the thin part; the operating part 40 is arranged in the base part. Adhering resin material 43 is applied to the thick part. A suitable number of these single-plate bodies are arranged so as to form the needle row ribbon 44. The burried part 36 and the projecting part 36 are provided in a single needle plate body, and the burried part 36 and the projecting part 36 are fitted and fixed respectively in the groove 33 of the cylinder comb body and in the small groove 34. All of the front needle heads 37 and the back needle heads 38 in this condition are at the distance R from from the axis 35 of the cylinder comb 31 and are deemed to be situated on the same circumference.

The third embodiment of the invention is illustrated wherein in FIGS. 12-15. 51 is a needle, 52 is the operating part of the needle 51, 53 is the fitting part of the needle 51, 54 is a fixing groove provided in the setting part 53 of the needle 51, 55 is a metal plate having the same shape as the setting part 53 of the needle 51, 56 is a fixing groove provided on the metal plate 55, and 57 is a fixing plate.

As shown in FIG. 12 in the needle-row ribbons of this embodiment, the metal plate 55 of the same shape as the setting part 53 of the needle 51 is interposed between the adjacent setting parts 53 of the needles 51, and one fixing plate 57 is forced in the direction of the arrow into the fixing grooves 54 and 56 of both the needle 51 and the plate 55 so as to be forcibly inserted and fixed therein.

The fourth embodiment of a needle-row ribbon of this invention is illustrated in FIGS. 16-19 wherein 61 is a needle, 62 is a needle point having a circumferential-arc-shaped bored part 63 in the operating part 61, 64 is a step part provided in the base part 62' of the needle 62, 65 is a dove-tailed groove provided in the back surface of the burried part of the needle 61, 66 is a projection provided in the front surface of the burried part of the needle 61. A plurality of said needles 61 are arranged, and, as shown in FIG. 19, a rectangular iron plate 67 having nearly the same width as the length l of a dove-tailed groove 65 and a bent shape is inserted into the dove-tailed groove 65 provided in the back surface of the burried part 3 of the needle 61 as shown in FIG. 17. Next, the projection 68 of the iron plate 67 inserted into the dove-tailed groove 65 of the needle 61 is pressed to straighten the iron plate 67, as shown in FIG. 18, so as to make a needle-row ribbon 69 in which many needles 61 are fixed with the iron plate 67.

As this invention is formed the needle plate 17 can be made by perforating it by pressing, and the operating part 18 can be freely shaped. Accordingly, the sticking angle of the needle part 19 can be effectively decided, and the thickness of a needle can be small and the width thereof can be comparatively large, so the needle-setting density becomes larger by 50-70 percent as compared with a round needle.

In case the needle-setting density is be kept as is, the thickness of the needle plate 17 can be increased, so that the intensity of the needle plate increases and the degree of damage thereto remarkably decreases as compared with conventional needles.

Moreover, in a cylinder comb body 11, the groove 14 is formed parallel to the imaginary radial line 15, so the distance between the grooves, that is to say, between the needle rows, becomes almost uniform, and a uniform thickness can be given to the distance between the grooves, thereby increasing the intensity. Accordingly, if the intensity of said part is reduced to the limit, the number of needle rows can even be increased corresponding, namely, up to more than 19 rows.

Furthermore, the thickness or density of needles in the needle rows (30) can be freely varied, the needle setting construction suitable for slivers can be furnished and no dust adheres to or accumulates in the part between the needle rows. In addition, as a needle row is fixedly set with a screw, a needle row cannot fall out accidentally.

The needle row 30 consists of a plurality of iron plates 17 combined together by one long belt-shaped body 26, and when this body is actually used, it is cut in a fixed length and is fitted to the cylinder comb body 11. Thus, the mass production of said bodies is possible, and the custody and transportation thereof are easy. Even if any of the needle rows 30 should be damaged, they can be easily and economically replaced by new ones.

In the cylinder comb in which the ribbon of needle plates equipped with a plurality of needle points is provided, the density of needle points is doubled as compared with that of a conventional cylinder combs having a single needle point. It is also possible to use a cylinder comb equipped with a single needle plate body with a single needle point or a single needle plate body with two or three five needle points in accordance with the nature of fibres to be treated. Furthermore, it is possible to make the number of needle points of the front part of a cylinder comb different from that of needle points of the back part of the cylinder comb as occasion demands.

It is possible to execute combing in the most desirable condition in accordance with the differences of fibres by providing a cylinder comb with a row of needles each having a plurality of needle points.

Since a needle without a step part is used between the operating part and the setting part, and a metal plate is interposed between the needles this considerably simplifies the manufacturing of these parts.

Furthermore, in the ribbon of needle rows according to this invention, the gap of the operating part of a needle can be suitably changed according to the thickness of the metal plate 55, so slivers can be combed in the best condition by manufacturing the above ribbon by changing the gap of the operating part of a needle in accordance with kinds of slivers.

In the central part of the ribbon of a needle row a needle can be made fine by lessening the gap of a needle by means of a thin metal plate 55, and then a needle can be made rough by making the gap of a needle gradually bigger by means of a metal plate 55 which becomes gradually thicker as a needle is positioned nearer the end part of the ribbon of a needle row.

Furthermore, in this invention, as mentioned above, after a metal plate 67 has been bent and inserted into the dove-tailed groove 65 of a plurality of needles 61 standing in a row, it is pressed so as to be straight. Therefore, not only cam the ribbon of a needle row be made in a very short time and without much labor, but also only one metal plate such as a cheap iron plate is used in place of expensive solder or synthetic resin. Thus the cost of production is low. Moreover, in a ribbon of a needle row 69 manufactured in accordance with the method of manufacture of this invention, a plurality of needles 61 are fixed by inserting a bent metal plate 67 into the dove-tailed groove 65 of a needle 61 and thereafter pressing upon said plate to straighten it in the d0ve-tailed groove 65, so that the intensity which fixes a needle 61 is very great and the ribbon of a needle row doesn't separate.

What we claim is:

1. A needle-row ribbon for use with a cylinder comb comprising a semi-cylindrical body portion having on its outer circumferential surface a plurality of angularly spaced apart axially extending grooves having at least one side wall with a radially inclined axially extending second smaller groove therein, comprising a plurality of needles including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, and means connecting said needles in side by side relation into a needlerow ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb.

2. A needle-row ribbon for use with a cylinder comb having a semi-cylindrical body portion having angularly spaced apart axially extending grooves in its outer surface, comprising a plurality of needles, including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, spacing plates interposed between adjacent needles, and means connecting said needles and said spacing plates in side by side relation into a needle row-ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb.

3. A needle-row ribbon for use with a cylinder comb having a semi-cylindrical body portion having angularly spaced apart axially extending grooves in its outer surface, comprising a plurality of needles, including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, and means connecting said needle in side by side relation into a needle-row ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb, said means comprising a triangularly shaped groove in the leading edge of said plate-like body portion and two elongated belts having upper and lower edges, one of said belts having on one side thereof a longitudinally extending raised portion of triangular cross section adjacent its upper edge and a smaller longitudinally extending raised portion also triangular in cross section on the opposite side thereof received within said triangularly shaped groove, the other of said belts engaging said plate-like body portion on its rear edge.

4. A needle-row ribbon for use with a cylinder comb having a semi-cylindrical body portion having angularly spaced apart axially extending grooves in its outer surface, comprising a plurality of needles including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, and means connecting said needles in side by side relation into a needle-row ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb, said means comprising a protrusion on the leading edge of said plate-like body portion having a triangular cross section and a groove in the rear edge of said body portion having a dove-tail cross section, said groove being adapted to engageably receive an elongated metal plate.

5. A needle-row ribbon as set forth in claim 4 comprising a plate including a plate-like body portion having a leading edge and a rear edge, a triangularly shaped protrusion on its leading edge, a dove-tailed groove in its rear edge, and lacking a needle point, interposed between adjacent needles in the needlerow ribbon.

6. A method of removably securing a plurality of needles including a plate-like body portion having a leading edge, a rear edge with a groove having a dove-tail cross section therein, comprising slidably inserting an elongated metal plate bent about a longitudinal axis to define two parts together having a V-shaped cross section into said dove-tailed grooves of the needles arranged in side by side relationship to connect said needles to one another, securely fixing the needles in the side by side relationship by applying pressure to said plate to remove the bend therefrom and provide a flat cross section thereon thereby firmly fixing said plate in said grooves.

7. A cylinder comb for a comber comprising a semi-cylindrical body portion having on its outer circumferential surface a plurality of angularly spaced apart axially extending grooves having at least one side wall with a radially inclined axially extending second smaller groove therein and removable needle row ribbons positioned within said axially extending grooves.

8. A comb as set forth in claim 7 wherein said angularly spaced apart axially extendin grooves have a radially inclined axially extending beveled su ace opposite the wall containing said second groove. 

1. A needle-row ribbon for use with a cylinder comb comprising a semi-cylindrical body portion having on its outer circumferential surface a plurality of angularly spaced apart axially extending grooves having at least one side wall with a radially inclined axially extending second smaller groove therein, comprising a plurality of needles including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, and means connecting said needles in side by side relation into a needle-row ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb.
 2. A needle-row ribbon for use with a cylinder comb having a semi-cylindrical body portion having angularly spaced apart axially extending grooves in its outer surface, comprising a plurality of needles, including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, spacing plates interposed between adjacent needles, and means connecting said needles and said spacing plates in side by side relation into a needle row-ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb.
 3. A needle-row ribbon for use with a cylinder comb having a semi-cylindrical body portion having angularly spaced apart axially extending grooves in its outer surface, comprising a plurality of needles, including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, and means connecting said needle in side by side relation into a needle-row ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb, said means comprising a triangularly shaped groove in the leading edge of said plate-like body portion and two elongated belts having upper and lower edges, one of said belts having on one side thereof a longitudinally extending raised portion of triangular cross section adjacent its upper edge and a smaller longitudinally extending raised portion also triangular in cross section on the opposite side thereof received within said triangularly shaped groove, the other of said belts engaging said plate-like body portion on its rear edge.
 4. A needle-row ribbon for use with a cylinder comb having a semi-cylindrical body portion having angularly spaced apart axially extending grooves in its outer surface, comprising a plurality of needles including a plate-like body portion having a leading edge, a rear edge, and at least one saw-tooth shaped needle point at one end thereof, and means connecting said needles in sidE by side relation into a needle-row ribbon and removably securing said needle-row ribbon in the grooves in the cylinder comb, said means comprising a protrusion on the leading edge of said plate-like body portion having a triangular cross section and a groove in the rear edge of said body portion having a dove-tail cross section, said groove being adapted to engageably receive an elongated metal plate.
 5. A needle-row ribbon as set forth in claim 4 comprising a plate including a plate-like body portion having a leading edge and a rear edge, a triangularly shaped protrusion on its leading edge, a dove-tailed groove in its rear edge, and lacking a needle point, interposed between adjacent needles in the needle-row ribbon.
 6. A method of removably securing a plurality of needles including a plate-like body portion having a leading edge, a rear edge with a groove having a dove-tail cross section therein, comprising slidably inserting an elongated metal plate bent about a longitudinal axis to define two parts together having a V-shaped cross section into said dove-tailed grooves of the needles arranged in side by side relationship to connect said needles to one another, securely fixing the needles in the side by side relationship by applying pressure to said plate to remove the bend therefrom and provide a flat cross section thereon thereby firmly fixing said plate in said grooves.
 7. A cylinder comb for a comber comprising a semi-cylindrical body portion having on its outer circumferential surface a plurality of angularly spaced apart axially extending grooves having at least one side wall with a radially inclined axially extending second smaller groove therein and removable needle row ribbons positioned within said axially extending grooves.
 8. A comb as set forth in claim 7 wherein said angularly spaced apart axially extending grooves have a radially inclined axially extending beveled surface opposite the wall containing said second groove. 